Inclined furnace hoist



March 1s, 1924.5 1,481,025

A?|.H.RC)SE INCLINED FURNAGE HOIST Filed Jan. is. 1923 s sheets-sheet 1 Ilemeas: Inventor.'

March 418 1924.

fig] G. H. Ross mcLmEn Fummcn noxsT Y. -Fi1ed Jan. is. 1923-' 3 sheets-sheet v2I mess-es.'

March 1s. 1924.

vG. H. ROSE INCLINED FURNAGE HOIST med aan.. 1e 1923 a sheets-snee; z

Patented Mar. 18, 1924.

Geenen` H. iaosn,A or, BEnAv-on, PENNSYLVANIA.

INCLINED FURNACE HOIST Appiieanmeiea11am-arms; 1923;- seriai -Nw sisgooa:

17 '0 all whom it 'mag/I concern 13e-it lrnownithau Gironde H Rosa, a citizen-oftlie-United States; and resident of BeniAvon, in.thecounty ofl fr'llegheny and State-iof Permsylvania,l have*inventedF certainl new and use-fuif `improvementsin*- In'-y clined Furnace Hoists of w-h'ielrthe--following `is aspeei-fication.

My invention' relates to theinclined skip'- hoists-for'- bridgesof mechanically filled blast furnaces and l hasA fon oneA object? thefprovi-x sion of. anI inclined-)hoist that: is entirely supportedi independentl of the'- furnace stack: and; in'a manner, not affected in: any wayi 15 by expansion: and`y contraction of thel furnacel shell:

Suich= hoists,y when independently sup-A ported;A will alsohavethe advantages: ofi permitting repairs 13o-beJ madeftotle fur-vl nace shell@ andi lining Withoutinterfering:l witlrtlre hoist or bridge'and;willieliminate strains f heretofore= caused by.7 the" weight. of

the-bridgeV and pull ofthe cables' onthe:V

bridge: beingv transmitted to: thefurnace-v shell.'

Another objectfoff the invenftionais to providean inclinedslrip lroist'or bridge having an integral crane'frunwayy adaptedto'sups porti aV trolley: forruse r inw handling any; off

the severalpartsof the furnaceftopsxwhen rebuilding or repairing the furnace top' rigging.

Heretofore itf' has beenft-he usual practice to support the upper end of the skip hoist or bridge 'on the top of the blast furnace by securing the supporting structure to the shell of the furnace. This practice caused the bridges to be constantly affected by eX pansion and contraction, which occurs in 40 operation of the furnaces, with moreJ or less damaging results. As pointed out above, the present invention eliminates these disadvantages.

In the drawings- Figure 1 is a side elevation of a blast furnace having a skip hoist bridge constructed in accordance with this invention.

Figure 2 is a plan of the horizontal top portion of the bridge.

Figure 3 is a sectional elevation on the line III- III of Figure 1.

Figure i is an elevation of the rear leg or support for the bridge.

nace* having al slightly modified construe` 55 tion of skip hoist bridge Referring. more particularly to \the.` drawings, thefnurme-ral 2V designatesztlre blast-ffun naces as' a whole, whiclwmayvbe ofi'any well-lfy ln'iownA desi-gni The] .furnace hfas :tires usual 60 l charginghopper iatitsjupperend adapted to receive 1the imaterial' from the skip 1ro-ists. and deliver: itz' to the 'chargingy belli, ln:Y theI 1 furnace illustrated;y thie` charging: belli is. shown; in dotterdi lines andf comprises a: dum. plea?` construction; consisting ofV antupperl bell eandlower bells. Tflierfurnace-Willx notrbev further ydescribed inzdetail'sineef it; is not? a i part; of: this l invention, except." asi lcoin-' binedI with;v the. novel skip hoist to e bei" del .70 scribed.V

Y A: cast 'house f6' a surrounds!v thelower:` por;- tion f of` the :furnace fand: servesI Ito house the.- differentimeclfanisms connected"withtliewopa Y Y e-rationioffthe'furnacea u 75 The castho'use 6 isvof: steel@construction=A and has heavy rolled metaltrus'sesfg? anda iuetal roo-f2 8.- Tlielsides ofzithe castTV house.l generally are amoreorzfless'vopenfori'the purspose y of: ventilation,l Y

The skip .-vhoist` is; oft theIWe-ll known in'-,l clined type and comprises an inclined traelc; supporting portion 9 having its lewe/rendi! mountedv4 on; a; suitable abutment f10 and' its upper-end extending-.upwardlyl over:v thexfur` S5 nacef 2 and 'supported on f a i suitable! -isupportf 4 11, which extends upwardly from the side frame of the cast house. A cantilever portion 12 of the bridge extends beyond the furnace on a line at right angles to the verti- 9o cal axisof the bridge and serves as a crane runway for a suitable crane trolley 13.

A second upright support 14- extends upwardly from the base of the furnace 2 and is secured to the portion 9 of the bridge in- 95 termediate its ends. It will thus be seen that the bridge is supported entirely independent of the blast furnace.

The track supporting portion 9 of the bridge is composed of girders lpsecured in spaced relation and braced by lateral bracing members 16. Suitable transverse track supporting beams 17 are secured between the side girders and support track rails 18,

which form two tracks for the skip cars 19 105 which are operated in the usual manner by Y 'form 22 is adapted to support suitable sheaves 24 for the cables 20.

The modified construction of Figure 5 is substantially the same as the preferred construction and therefore like parts will be designated by the same reference numerals as used in the description given before and the description of such parts will be understood to apply to both constructions.

rlhe principal differences in construction between the modified and preferred constructions are that in the modified construction the cast house .6 is not shown and may be omitted from around the furnace, and the rear support 11, which corresponds to the support 11 in the preferred construction, extends upwardly from the ground instead of from the top of the side wali of the cast house. The second support 14- for the track supporting` portion 9 is omitted from the modified construction, the whole weight of the bridge being supported by the abutment- 10 and support 11a.

The crane trolley and various details are omitted from this view so as to simplify it. However, it will be understood that such details would be embodied in a completed bridge.

l claim 1. The combination with a blast furnace, of an inclined permanent skip hoist or b-ridge extending upwardly along` and over the top of said furnace, said bridge having a cantilever upper end extending beyond the furnace on a line at right angles to the vertical axis of the furnace forming a crane runway, and suitable upright supports on opposite sides of said furnace, one of said supports being secured to said bridge at a point intermediate its ends and the other of said supports being secured to the bridge adjacent its upper end, said supports extending up wardly from bases free of said furnace.

2. rThe combination with a blast furnace having a cast house, of an inclined skip hoist or bridge extending upwardly` along and over the top of said furnace, and suitable upright supports on opposite sides of said furnace, one of said supports extending upwardly from the base of said cast house and secured intermediate the ends of said bridge` and the other of said supports extending up wardly from the top of one of the side walls of said cast house and being secured to said bridge adjacent its upper end, thereby supporting said bridge free of said furnace.

3. The combination with a blast furnace having a cast house built around its base, of an inclined skip hoist or bridge extending upwardly along and over the top of said furnace, said bridge having a cantilever upper end extending beyond the furnace on a line at right angles to the vertical axis of the furnace forming a crane runway, and suitable upright supports on opposite sides of said furnace, one of said supports extending upwardly from the base of said east house and secured intermediate the ends of said bridge, and the other of said supports extending upwardly from the top of one of the side walls of said cast house and being secured to said bridge adjacent its upper end, thereby providing a supporting structure for said bridge entirely free of said furnace.

In testimony whereof, I have hereunto signed my name.

GEORGE H. RSE. 

